maven: check nullability on user data associated with MavenFullCompilerClasspath #SCL-22253 fixed

Author: azdrojowa123

sbt/sbt-impl/test/org/jetbrains/sbt/project/SbtOptsTest.scala

@@ -102,11 +102,4 @@ class SbtOptsTest {
     doTest(""" -d -sbt-dir "" """, Seq("-d", "-sbt-dir", ""))
     doTest("-d -sbt-dir -dummy", Seq("-d", "-sbt-dir", "-dummy"))
   }
-
-  import org.junit.Assert.assertTrue
-  @Test
-  def dummyFailingTest(): Unit = {
-    assertTrue(false)
-  }
-
 }

scala/integration/maven/src/org/jetbrains/plugins/scala/project/maven/ScalaMavenImporter.scala

@@ -157,6 +157,7 @@ final class ScalaMavenImporter extends MavenImporter("org.scala-tools", "maven-s
     scalaLibraryToMarkAsSdk.foreach {
           case Some((scalaLibrary, scalaLibraryVersion)) =>
             val compilerClasspathFull = module.getProject.getUserData(MavenFullCompilerClasspathKey)
+            if (compilerClasspathFull == null) return
 
             val compilerBridgeBinaryJar =
               ScalaSdkUtils.compilerBridgeJarName(scalaLibraryVersion.presentation).flatMap { bridgeJarName =>